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aleksklad [387]
4 years ago
5

What is the average pressure exerted by the molecules on the walls of the container?

Chemistry
1 answer:
Arturiano [62]4 years ago
5 0

Answer:

This question appears to be incomplete

Explanation:

However, we know that one of the kinetic theories of gases is that <em>gas molecules collide with one another and against the walls of the container (in which they are stored); </em>hence exerting there pressure on the walls of this container.

Ideal gases are the most suitable for this theory because it's molecules are far apart and do not exert any attractive forces towards one another; hence it's molecules move "undisturbed" or "freely". For ideal gases, <u>the average pressure exerted by by the gas molecules on the walls of the container can be calculated as </u>

PV = nRT

Where P = pressure (in atmosphere, atm or kilopascal, KPa or millimeter mercury, mmHg)

V = volume (in liters)

n = number of molecules

R = ideal gas constant (8.3145 J·mol⁻¹·K⁻¹)

T = temperature (in kelvin)

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Carbon-14 has a half-life of 5720 years and this is a first order reaction. If a piece of wood has converted 75% of the carbon-1
liraira [26]

Answer: 1145.8 years

Explanation:

Half-life of carbon-14 = 5720 years

First we have to calculate the rate constant, we use the formula :

k=\frac{0.693}{5720\text{years}}

k=1.21\times 10^{-4}\text{years}^{-1}

Now we have to calculate the age of the sample:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  = 1.21\times 10^{-4}\text{years}^{-1}

t = age of sample  = ?

a = let initial amount of the reactant  = 100 g

x = amount decayed = 75 g

a - x = amount left after decay process  = 100 - 75 = 25g

Now put all the given values in above equation, we get

t==\frac{2.303}{1.21\times 10^{-4}}\log\frac{100}{25}

t=1145.8years

8 0
3 years ago
Read 2 more answers
CHEGG Consider the following reaction: LaTeX: Fe\left(CN\right)_6^{3-}+e^-\longrightarrow Fe\left(CN\right)_6^{4-}F e ( C N ) 6
sladkih [1.3K]

Answer:

E°= E°cathode- E° anode= 0.271-0.330= -0.59V

Explanation:

NB: the stoichiometry does not affect E°values,

And the more positive the E° values , the greater it's tendency to become spontaneous and hence irreversible, and the more negative the E° values the more likely to become less spontaneous and reversible, hence the above reaction is reversible

4 0
4 years ago
On the ph scale, indicate which direction is increasingly acidic and which is increasingly basic.
alexdok [17]
1 2 3 4 5 6 7 8 9 10 11 12 13 14
From 1-6.5 ph acidic
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3 years ago
An FAS calibration curve (absorbance, y-axis vs. FAS in g/mL) gave an equation he regression line of: y-3678(x)+0.056. If an unk
mezya [45]

Answer:

FAS concentration = 1.61*10^-4M

Explanation:

Beer Lambert's law relates the absorbance (A) of a substance to its concentration (c) as:

A = \epsilon lc----(1)

where ε = molar absorption coefficient

l = path length

A plot of 'A' vs 'c' gives a straight line with slope = εl

In addition absorbance (A) is related to % Transmittance (%T) as:

A = 2-log%T----(2)

For the FAS solution, the corresponding calibration fit is given as:

y = 3678(x) + 0.056

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A = 2-log(25.6)=0.592

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When carbon undergoes sp2 hybridization it forms
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When carbon undergoes sp2 hybridization it forms methane ? I believe.

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